Gstöhl, Sieglinde; Frommelt, Christian (2017): Although Britain won’t rejoin EFTA, it can learn a great deal from its experience, The London School of Economics and Political Science (LSE), Brexit Blog. 6 November 2017, http://blogs.lse.ac.uk/brexit/2017/11/06/although-britain-wont-rejoin-efta-it-can-learn-a-great-deal-from-how-it-works/